Ore-separator.



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PATENTED JUNE 23, 1903 Mumien l T J REID ORE SEPARATOR.

APPLIUATION FILED SEPT* 29, 1902.

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Witnesses:

' provide a separator of theabove-described no. renale.

i UNITED STATES Patented .Tune 23, 1903.

kPATENT OFFICE.

.THOMAS J. REID, OF CHICAGO, ILLINOIS. y

OVRE-SEPARAT'OR.

SPECIFICATION forming part of Letters Patent No. 731,815, dated June 23, 19031.

l Application iiledSeptember 29, 1902. Serial No. 125,150. (No model.)

To all whom it may concern:

Be it known that I, THOMAS J. REID, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,

have invented certainnew and useful Im.

provements in Ore-Separatore, of which the following is a specification,

This invention relates to improvements in an apparatus to be used forseparating finer particles from the coarser ones, and while it is more especially intended to be used for separating fine gold from sand and other material in which the gold is found, yet it is applicable for separating vthe finer from coarser particles of other material; and it consists in certain peculiarities of the construction,novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.`

The principalobject of my invention is to character which shall be simple and inexpensive in'construction, strong, durable, and effective in operation. l'.

Another object of the invention is to prolvide a separatorwhich shall be compactin form, so as to beeasily transported on an ordinary wagon, and which shall be 'ofsuch construction that the interior of the receivers may be inspected during the -operation ofthe machine withoutdangeriof any of the finer particles escaping. p ,A

Still another 4object is -to so construct the .machine that the valves for controlling-the air-current through thedraft-conduitmay be operated automatically or manually.

y venienc'e of illustration.

Other objects and advantages of the invenL tion will be disclosed in the subjoined description and explanation.

In order to enable others skilled in the art to which myfinvention pertains to make and use the same, IWill now proceed to describe it, referring to the accompanying drawings, inwhich`` .D p f Figure 1 is aviewin side elevation of .an ore-separator embodying rnyinvention, showing the discharge-pipe shortenedfor the con- Fig. 2 is a fragmental view of a portion of the draft-conduit, showing a modification in the means .for operating the valves therein. Fig.l 3 is a detached view, partlyin section, showing means l of the conduit.

sieve d and is provided on its outer end with for operating the sieves of the receivers. Fig. 4 is a central longitudinal sectional view of the separator, and Fig. 5 is a detached view of a` modified form of one of the valves of the draft-conduit.

.Similarletters refer to like parts throughout the different views of the drawings.

A represents the main or supporting frame, which may be made of any suitable size, form, and material, on the upper portion of which is longitudinally mounted the draft conduit B, which is preferably cylindrical throughout most of its length, but may be of other form, if desired. As shown in the drawings, the front or receiving portion of the conduit B extends downwardly and then upwardly, so as to form a contracted bend b of about the size of` the main portion of the conduit, and has its free portion B flaring to receive the' ore or material from the hopper C, which rests on the upper portion of the flaring portion B of the conduit and is provided with a reciprocating sieve c, which rests on horizontal cleats c', secured to the inner surface of the Walls of the hopper. Just above the sieve c one of the walls of the hopper isprovided with an opening c2 and a chute c3 for the discharge of the material which Ais too Vcoarse to pass through the meshes of said` sieve. The

central portion of the conduitB is provided with an enlargement B? to form an eddying or settling chamber, the lower portion of which is transversely divided by means of anupward extension b' of the lower portion Each end of the enlargement B2 is provided with an opening d to receive a box or drawer D, which is covered with a a handle cl2, by means of which it may be Withdrawn from the settling-chamber. Journaled in the sides of the enlargement B2 is a valve-stem or shaft e, on which "is mounted a leaf or disk valve E, employed to regulate the current of air through the enlargement B2 of the conduit. On one end of thestem or shaft e is fixed an arm e', to whichis pivotally secured at one of its ends a pitman-rod E', the other end of which is connected to a band c2, which surrounds an eccentric E2, mounted on the driving-shaft Ffwhich is journaled longitudinally on the main frame. Communieating with the horizontal portion ot' the con IOO duit between the hopper or feed end thereof and the enlargement B2 is a receiver for the gold, which receiver preferably consists of two pieces G and G', which are united by lneans of a bayonet-joint or fastening-that is to say, the lower end of the portion G is provided with an upwardly and laterally eX-` tending slot g to receive a pin g' on the upper portion of the piece G', which latter piece is provided with openings or peep-holes g2, which are closed by means of glass g3 to prevent the escape or loss of the gold or fine material. The upper portion of the part G of the receiver is provided with a reciprocating sieve G2, which rests on horizontal cleats g4, secured to the inner surface of the walls of the receiver. Just above the opening in the conduit which communicates with the receiver-piece G is journaled in the sides of lhe conduit a valve-stem g5, on which is f mounted a leaf or disk valve gG, used to regu late the air-current at said point. Secured to one end of the valve-stein g5 is an arm Q7,

which is pivotally connected to the upper end of a pitman g8, the other end of which is se' cured to a band gf), which surrounds an eccentric gw, mounted on the driving-shaft. Communicating with the horizontal portion of the conduit B between its enlargement B2 and the exhaust-fan is another receiver, which preferably consists of two pieces H and H', usually of the same construction as just above described. Journaled in the Walls of the conduit just above the opening thereof which communicates with the receiverpiece H is a valve-stem h, on which is4 mounted a leaf or disk valve h', used forv Fig. 3,) which is fulcrumed on a bracket ,l One arm of the le-, ver I is connected, by means of a link t', tof the sieve, and the other arm is pivotally con-v nected to one end of a pitman I', the other endl secured to the receiver.

of which is secured to a bandt'2, surrounding an eccentric I2, mounted on the driving-shaft F, as is clearly shown in Figs. l and 3 of the drawings. conduit `B and near its discharging end is a shaft K, on the inner end of which is mounted an exhaust-fan M of the ordinary or any pre` ferred construction. Mounted on the outer portion of the shaft K is a pulley N, over which passes a belt O, by means of which and a pulley P the shaft K is geared to the driving-shaft F, to which power may be applied through a pulley Q and a belt (not shown) or Journaled longitudinally in thel otherwise, The rear end of the draft-conduit is upt-urned and has swiveledV thereon a discharge-pipe R, through whichthe refuse may be directed to the dump.

In Fig. 2 of the drawings I have shown a modification in the means for operating any one or all of the valves in the draft-conduit B, which consists in securing on one end of the valve-stem a hand-lever r, which is provided with a spring-actuated grip r' to engage the teeth of a rack-bar r2, secured to the outer surface of the conduit. By releasing the grip from the teeth of the rack-bar it is evident that the lever r may be turned so as to give the valve the proper deiiection or inclination, at which point it may be held by releasing the grip, so that it will engage the teeth of the rack-bar. p

Instead of making the leaf or disk valves imperforate I may make them of perforated pieces S, as is shown in Fig. 5 of the drawings.

Mounted on the end of the driving-shaft F adjacent to the hopper is au eccentric T, which is connected, by means of a pitman, to the sieve c, located in the hopper, so as to give said sieve a reciprocatory movement.

The operation is simple and as follows: Power from any suitable source may be applied to the driving shaft F, which will through its gearing with the shaft K cause the fan M to rotate, so as to create a strong draft through the draft-conduit B, in which operation the sieves c and G2 in the hopper and receivers, respectively, will be reciprocated by reason of their connections with the driving-shaft, and at the same time the valves in the conduit and enlargement thereof will be intermittently raised and lowered by rea'- son of their connections with the drivingshaft. While thus in operation the ore or material to be separated may be thrown or otherwise placed in the hopper C, when the particles which are too coarse to pass through the sieve c will be discharged through the opening c2 and chute c3, as is evident. After the sifted material `has passed through the sieve c in the hopper it will be Vcarried through the conduit until it reaches the valve gs, which will cause it to be directed downwardly, so as to pass overy the sieve G2in the receiverpiece G, which operation will cause the ner particles to pass through the sieve G2 and be lodged in the receiver. That portion of the material which does not pass through the IOC:

IIO

sieve G2 in the receiver-piece G will be car- Y gold. From the last-named receiver the materialwill beforced through the dischargepipe R to the dump.

It it is desired that the valves in the conduit shall not be operated by means of the driving-shaft, it is apparent that I may disconnect the pitmen on each of the valvestems and `supply said stems with a hand-lever r, as is shown in Fig. 2 and above de-V scribed.

While I have shown the sieves c and Gr2 in the hopper and receivers, respectively, as being movable, yet I may sometimes disconnect them from the drivin g-shaft, so that they Will remain stationary, without departing from the spirit of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an ore-separator, the combination of the main frame, with a draft-conduit mounted thereon, a hopper communicating with o ne end of said conduit, a movable sieve lol cated in the hopper, a receiver communicating with the conduit, a movable sieve located in the receiver near the conduit, a valvelocated in the conduit near the upper end of the receiver and also near the said sieve so as to regulate the draft thereagainst, and means to force air through the conduit, to del liect the valve and to `move said sieves, substantially as described.

2. In an ore-separator, the combination with the main frame, of a draft-conduit mounted thereon and having its front or feeding portion extended downwardly and then upwardly and` provided in its horizontal portion with an enlargement, a removable box located in each end of said enlargement, each havinga sieve-covering, ahopper communicating with the feed end of the conduit, a movable sieve located in the hopper, a receiver communieating with the conduit between its enlargement and the hopper, a movable sieve located in the receiver, a valve located in the enlargement of the conduit, a valve located in the conduit near the upper end of the receiver, and means to force air through the conduit, to deflect the valves and ton move said sieves, substantially as described..

8. In an ore-separator, the combination with the main frame, of Va draft-conduit mounted thereon and having about midway its length an enlargement, a removable box located in each end of said enlargement, each having a sieve-covering, a hopper communicating with one end ot' said conduit,a movable sievelocated in the hopper, a receiver communicating with the conduit between the hopper and said enlargement, another receiver communicating with the conduit between the said enlargement and the discharging end of the conduit, a movable sieve located in each of the receivers, a Valve located in the conduit near the upper end of each of the receivers, a valve located in the enlargementof theconduit, and means to force air through the conduit, to deflect the valve and to move said sieves, substantially as described.

4. In an ore-separator, the combination of the main frame, with a draft-conduit mounted thereon, -ahopper communicatingwith one end of said conduit, a sieve located inthe hopper, a receiver communicating with the conduit, a sieve located in the receiver near the conduit, a valve located in the conduit near the upper end of the receiver and also near said sieve so as to regulate the draft thereagainst, and means to force air through the conduit, substantially as described.

THOMAS J. REID.

Witnesses:

CHAs. C. TILLMAN, A. GusTAFsoN. 

